PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



CONTENTS. 



PAGE 



On the Acoustic Shadow of a Sphere. By Loed Rayleigh, O.M., F.R.S. 

 With an Appendix, giving the Values of Legendre's Functions from 

 P to P 20 at Intervals of Five Degrees. By Professor A. Lodge. 

 (Abstract) . . .65 



The Significance of the Zoological Distribution, the Nature of the Mitoses, 

 and the Transmissibility of Cancer. By E. F. Basheoed, M.D., and 

 J. A. Muebay, M.B., B.Sc. Communicated by Professor J. Eose 

 Bbadeoed, F.R.S. (Plate 2) 66 



Conjugation of Resting Nuclei in an Epithelioma of the Mouse. By E. F. 

 Bashfoed, M.D., and J. A. Mubbay, M.B., B.Sc. Communicated by 

 Professor J. Rose Beadeobd, F.R.S 77 



On the Part played by Benzene in Poisoning by Coal G-as. By R. Staehelif, 

 M.D., Senior Assistant in the Medical Clinic at Basle. Communicated 

 by Professor E. H. Stabling, F.R.S 78 



The "Islets of Langerhans" of the Pancreas. By H. H. Dale, B.Ch., 

 George Henry Lewes Student. Communicated by Professor Staeling, 

 M.D., F.R.S. (Abstract) . . . . . . . . .84 



The Reduction Division in Ferns. By R. P. G-eegoey, St. John's College, 

 Cambridge, University Demonstrator in Botany. Communicated by 

 Professor H. Maeshall Waed, F.R.S .86 



The Secreto-motor Effects in the Cat's Foot Studied by the Electrometer. 



By Augustus D. Wallee, M.D., F.R.S. ...... 92 



On the Effects of Joining the Cervical Sympathetic Nerve with the Chorda 



Tympani. By J. N. Langley, F.R.S., and H. K. Andebson, M.D. . 99 



The Longitudinal Stability of Aerial Gliders. By G. H. Beyan, Sc.D., F.R.S., 



and W. E. Williams, B.Sc, University College of North Wales . . 100 



Cultural Experiments with "Biologic Forms" of the ErysipJiacece. By 

 Eenest S. Salmon, F.L.S., Communicated by Professor H. Maeshall 

 Waed, F.R.S. (Abstract) 116 



On the Origin of Parasitism in Fungi. By Geoege Massee, Principal 

 Assistant, Herbarium, Royal Gardens, Kew. Communicated by Sir 

 William T. Thiselton-Dyeb, K.C.M.G-., CLE., F.RS. (Abstract) . 118 



Minutes of Meetings of February 4, 1904, and February 11, 1904 x 



Price Two Shillings. 



February 24, 1904. 



